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OpenStudy (lasttccasey):
18 - 5x = -3x + 6
18 - 6 = -3x + 5x
12 = 2x
6 = x
OpenStudy (lasttccasey):
Would you like a more in-depth explanation?
OpenStudy (mathstudent55):
@lasttccasey is correct, but here it is with the steps explained:
Distribute the -3 on right side:
18 - 5x = -3x + 6
Add 3x to both sides and subtract 18 from both sides:
18 - 5x + 3x - 18 = -3x + 6 + 3x - 18
Combine like terms:
-2x = -12
Divide both sides by -2
x = 6
OpenStudy (anonymous):
is the 5x negative?
OpenStudy (mathstudent55):
The original problem did have - 5x
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OpenStudy (anonymous):
If i add +3 to both sides to get rid of 3x does -5x become -8x?
OpenStudy (anonymous):
i got it! LOL
OpenStudy (mathstudent55):
The left side had -5x. We added 3x to both sides to get rid of -3x on the right side.
On the right side you end up with -3x + 3x = 0. On the left side, we already had -5x, so when you add 3x to it, you get -5x + 3x = -2x
OpenStudy (anonymous):
|dw:1355383109829:dw|
OpenStudy (anonymous):
nvm i forgot that -5 + 3 = -2 , -12/-2 = +6 xD
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